Cardiovascular disease (CVD) affects millions of people in the United States; each year, more people die from CVD than from any other disease. There are many dietary and lifestyle factors that may increase the risk of developing CVD. Preliminary research has shown that the presence of certain trace elements may be associated with the development of CVD. This study will examine toenail clippings and laboratory data to evaluate the link between trace elements and CVD risk factors in young adults.